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Extraction of metal from the ore cassiterite involves
(2011, One or More than One Options Correct Type)
  • a)
    carbon reduction of an oxide ore
  • b)
    self-reduction of a sulphide ore
  • c)
    removal of copper impurity
  • d)
    removal of iron impurity
Correct answer is option 'A,D'. Can you explain this answer?
Verified Answer
Extraction of metal from the ore cassiterite involves(2011, One or Mor...
The important ore of tin is cassiterite (SnO2). Tin is extracted from cassiterite ore by carbon reduction method in a blast furnace.
SnO2 + 2C → Sn + 2CO
The product often contain traces of iron which is removed by blowing air through the melt to oxidise to FeO which then floats to the surface.
2Fe+ O2 → 2FeO
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Extraction of metal from the ore cassiterite involves(2011, One or More than One Options Correct Type)a)carbon reduction of an oxide oreb)self-reduction of a sulphide orec)removal of copper impurityd)removal of iron impurityCorrect answer is option 'A,D'. Can you explain this answer?
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